#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
int main()
{
  printf("process is running, only my!\n");
  fork();
  printf("hello world\n");
  sleep(1);

  /*pid_t id = getpid();
  pid_t parent = getppid();
  while(1)
  {
    printf("I'm a process, pid: %d  ppid:%d\n", id, parent);
    sleep(1);
  }*/
    return 0;
}
